重点词组x0b x0b1. be used for 用来做……2. be invented by 由(某人)发明x0b3. light bulb 电灯泡4. microwave oven 微波炉x0b5. by mistake 错误地6. in the end 最终；最后x0b7. salty enough 足够咸8. by accident 偶然；意外x0b9. not…until… 直到……才……10. according to 根据；按照x0b11. fall into 落入；陷入12. in this way 这样x0b13. flying disk 飞碟14. knock into 撞上(某人)x0b15. fall down 倒下；摔倒16. divide…into… 把……分成x0b x0bx0bx0b

　　重点句型 x0b1. Who was the telephone invented by? It was invented by Bell.x0b电话是谁发明的? 电话是贝尔发明的.x0bx0b2. When were electric slippers invented? They were invented last year.x0b电拖鞋是什么时候被发明的? 它们是去年被发明的.x0bx0b3. What are they used for? x0b它们是用来做什么的? x0b4. They are used for seeing in the dark.x0b它们是用来在黑暗中看东西的.x0b5. Tea wasn’t brought to the Western world until 1610.x0b直到1610年茶才被带到西方世界. x0b6. I prefer lemons to oranges. I like the sour taste.x0b 我喜欢柠檬胜过橙子.我喜欢酸味.